<xs:element name="SequenceNumber" type="NaturalType"><xs:annotation><xs:documentation>The SequenceNumber element is an ordinal number specifying the order of the base feature in the construction or alignment.</xs:documentation></xs:annotation></xs:element>
<xs:complexType name="SequencedBaseFeatureType"><xs:annotation><xs:documentation>The SequencedBaseFeatureType defines a feature that is one of a set of features used in a construction or alignment.</xs:documentation></xs:annotation><xs:complexContent><xs:extension base="BaseFeatureType"><xs:sequence><xs:element name="SequenceNumber" type="NaturalType"><xs:annotation><xs:documentation>The SequenceNumber element is an ordinal number specifying the order of the base feature in the construction or alignment.</xs:documentation></xs:annotation></xs:element></xs:sequence></xs:extension></xs:complexContent></xs:complexType>